EP0972668A2 - Système de pile à combustible capable de réduire des pertes de puissance électrique - Google Patents

Système de pile à combustible capable de réduire des pertes de puissance électrique Download PDF

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Publication number
EP0972668A2
EP0972668A2 EP99113096A EP99113096A EP0972668A2 EP 0972668 A2 EP0972668 A2 EP 0972668A2 EP 99113096 A EP99113096 A EP 99113096A EP 99113096 A EP99113096 A EP 99113096A EP 0972668 A2 EP0972668 A2 EP 0972668A2
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EP
European Patent Office
Prior art keywords
fuel cell
power
battery
inverter
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99113096A
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German (de)
English (en)
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EP0972668A3 (fr
Inventor
Masayoshi Iwase
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Toyota Motor Corp
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Toyota Motor Corp
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Publication date
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Publication of EP0972668A2 publication Critical patent/EP0972668A2/fr
Publication of EP0972668A3 publication Critical patent/EP0972668A3/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Definitions

  • the present invention relates to a fuel cell system capable of reducing electric power loss in a power conducting passage for supplying power from a fuel cell to a load.
  • a conventional fuel cell system installable in an electric vehicle is constructed as illustrated in Fig. 5.
  • a fuel 124 such as water and methanol and the like, is supplied into a reformer 128.
  • the reformer 128 produces a fuel gas, such as hydrogen gas, from the fuel 124 through steam reforming reaction with methanol.
  • the fuel gas produced by the reformer 128 and air 130 are supplied into a libel cell 136.
  • the fuel cell 136 generates an electromotive force through electrochemical reactions.
  • the generated electric power is supplied from the fuel cell 136 to an inverter 144 via a DC/DC converter 138 and a diode 139.
  • the inverter 144 also receives electric power from a battery 140 that is connected in parallel to the DC/DC converter 138.
  • the inverter 144 drives a motor 146 to provide driving force for the electric vehicle.
  • the DC/DC converter 138 regulates the voltage output from the fuel cell 136, and applies the regulated voltage to the inverter 144 and the battery 140 in parallel.
  • a control unit 120 calculates a required output of the inverter 144 (i.e., required electric power) from the amount of depression of an accelerator pedal of the electric vehicle detected by an accelerator pedal position sensor 122. Based on the calculated required output, the control unit 120 controls the inverter 144 so that an electric power corresponding to the required output is supplied to the motor 146 via the inverter 144.
  • a required output of the inverter 144 i.e., required electric power
  • the fuel cell 136 outputs an amount of power that provides the required output of the inverter 144.
  • the control unit 120 sets the output voltage of the battery 140 to a desired value such that a supplement power for the required output is outputted (discharged) from the battery 140 to the inverter 144, by controlling the DC/DC converter 138 to adjust the output voltage of the DC/DC converter 138 in accordance with a state of charge (SOC) of the battery 140 detected by an SOC sensor 142.
  • SOC state of charge
  • control unit 120 controls the DC/DC converter 138 to set the output voltage of the battery 140 to a desired value such that the surplus power is stored (charged) into the battery 140.
  • the related-art fuel cell system adjusts the output voltage of the DC/DC converter 138 provided between the fuel cell 136 and the parallel circuit of the battery 140 and the inverter 144, so as to set the output voltage of the battery 140 to various desired values, whereby a desired amount of power is outputted (discharged) from or stored (charged) into the battery 140.
  • the power converting efficiency of the DC/DC converter 138 is normally as low as 70-80%. Since power from the fuel cell 136 is supplied via the DC/DC converter 138, the related-art fuel cell system has a problem of a considerable power loss caused by the DC/DC converter 138.
  • the fuel cell system of the invention includes a fuel cell that is supplied with a fuel and generates a power, a secondary battery capable of storing the power generated by the fuel cell and of supplying a power stored therein to a load, a voltage adjusting device for adjusting a voltage generated by the fuel cell, a bypass device for supplying the power generated by the fuel cell to the load, bypassing the voltage adjusting device, and a switch device for selectively changing the path for the supply of the power generated by the fuel cell to the load between a path via the voltage adjusting device and a path via the bypass device.
  • the switch device if the switch device is switched so that the power generated by the fuel cell is supplied to the load via the bypass device, the power supply from the fuel cell to the load bypasses the voltage adjusting device, so that substantially no power loss occurs in the conduction passage.
  • the electric connection between the secondary battery and the bypass device and the electric connection between the secondary battery and the load may be discontinued by using a shutting device in such a manner that the secondary battery is completely electrically disconnected from the load, the fuel cell and the like.
  • the electrical disconnection of the secondary battery in this manner does not cause any substantial problem.
  • the secondary battery is thus disconnected, it becomes unnecessary to set the output voltage of the second battery to a desired value, so that the voltage adjusting device becomes unnecessary in this case. Therefore, the power generated by the fuel cell can be supplied to the load via the bypass device by using the switch device, without causing any problem. Hence, substantially no power loss occurs in the conduction passage.
  • the aforementioned case where it is unnecessary to store power into the secondary battery or output power from the secondary battery may include a case where an amount of charge of the secondary battery is substantially 100% and a case where a difference between a required power of the load and an expected output power of the fuel cell is substantially zero and where the amount of charge of the secondary battery is greater than a predetermined reference amount.
  • the voltage adjusting device may be formed by a DC/DC converter that is suitable to adjust, that is, increase or decrease, the voltage outputted from the fuel cell, to a desired value.
  • Fig. 1 is an illustration of the construction of a fuel cell system according to an embodiment of the invention.
  • the fuel cell system of the embodiment may be installed in an electric vehicle.
  • the fuel cell system illustrated in Fig. 1 has, as main components, a control unit 20, an accelerator pedal position sensor 22, a reformer 28, a fuel cell 36, a changeover switch 37, a DC/DC converter 38, a diode 39, a battery 40, a cutoff switch 41, a state-of-charge (SOC) sensor 42, an inverter 44, a motor 46, and a bypass 48.
  • a control unit 20 an accelerator pedal position sensor 22, a reformer 28, a fuel cell 36, a changeover switch 37, a DC/DC converter 38, a diode 39, a battery 40, a cutoff switch 41, a state-of-charge (SOC) sensor 42, an inverter 44, a motor 46, and a bypass 48.
  • SOC state-of-charge
  • the reformer 28 is supplied with a fuel 24, such as methanol and water and the like, and produces a hydrogen-rich gas (reformed gas) containing hydrogen through a steam reforming reaction with methanol as expressed by equation (1): CH 3 OH+H 2 O ⁇ 3H 2 +CO 2
  • the fuel cell 36 receives the hydrogen-rich gas produced by the reformer 28 as a fuel gas and also air 30 as an oxygen-containing oxidative gas, and causes electrochemical reactions as , expressed by equations (2)-(4) to generate electric power.
  • the fuel cell 36 is formed by a polymer electrolyte fuel cell having a stack structure formed by stacking a plurality of unit cells (not shown), each of which is made up of an electrolyte film, an anode, a cathode, a separator and the like.
  • the hydrogen-rich gas introduced into the fuel cell 36 is supplied to the anode of each unit cell via a fuel gas passage (not shown), so that the hydrogen-rich gas is consumed by the reaction expressed by equation (2).
  • Air is supplied to the cathode of each unit cell via an oxidative gas passage, so that it is consumed by the reaction expressed by equation (3).
  • Equation (4) expresses the reaction that occurs in the entire fuel cell.
  • the fuel cell 36 is connected, via the DC/DC converter 38, to the battery 40 and the inverter 44, which are connected in parallel. Power generated by the fuel cell 36 is supplied via the DC/DC converter 38 to the inverter 44 and, in some cases, to the battery 40.
  • the DC/DC converter 38 increases or decreases the voltage from the fuel cell 36, and applies the adjusted voltage to the inverter 44 and the battery 40 in parallel, via the diode 39.
  • the DC/DC converter 38 adjusts the value of the output voltage (regulates the voltage) in accordance with a control signal from the control unit 20.
  • the electric passage from the fuel cell 36 to the load 46 via the DC/DC converter 38 is a first electric passage.
  • the diode 39 allows current to flow only in the direction from the DC/DC converter 38 to the inverter 44 and the battery 40.
  • the battery 40 stores power supplied from the fuel cell 36 and, in some cases, stores power regenerated by the motor 46 and supplied via the inverter 44.
  • the battery 40 also supplies power to the inverter 44.
  • the battery 40 is a secondary battery such as a lead storage battery or the like.
  • the battery 40 may also be other type of secondary battery such as a nickel-cadmium storage battery, a nickel-hydrogen storage battery, a lithium secondary battery, and the like.
  • the source capacity of the battery 40 is determined depending on the expected running condition of the electric vehicle, that is, the expected magnitude of load, the source capacity of the fuel cell 36 provided in the vehicle, and the like.
  • the SOC sensor 42 detects the state of charge (SOC) of the battery 40, and sends the result of detection to the control unit 20. More specifically, the SOC sensor 42 is formed by an SOC meter that integrates the value of discharge or charge current with time. Based on the integrated value, the control unit 20 calculates the amount or state of charge of the battery 40. Instead of the SOC meter, a voltage sensor for measuring output voltage of the battery 40 or a specific gravity sensor for measuring the specific gravity of the electrolyte in the battery 40 may be used as the SOC sensor 42. In this case, the control unit 20 uses the value measured by the sensor to determine the amount or state of charge of the battery 40.
  • SOC state of charge
  • the inverter 44 drives the motor 46 by using the power supplied from the fuel cell 36 and/or the battery 40. More specifically, the inverter 44 converts the DC voltage supplied from the DC/DC converter 38 or the battery 40 into three-phase AC voltage and supplies the three-phase AC voltage to the motor 46. In accordance with the control signal from the control unit 20, the inverter 44 adjusts the frequency and the amplitude of the three-phase AC voltage (pulse width in reality) to be supplied to the motor 46, so as to control the torque produced by the motor 46.
  • the inverter 44 is formed mainly by six switching elements (for example, bipolar MOSFETs (IGBTs)).
  • the switching operation of the switching elements is controlled by the control signal from the control unit 20 so that the DC voltage applied to the inverter 44 is convened into three-phase AC voltage having a desired amplitude and a desired frequency.
  • the motor 46 is formed by, for example, a three-phase synchronous motor.
  • the motor 46 is driven by power supplied from the fuel cell 36 and/or the battery 40 via the inverter 44, so that a torque on the drive shaft (not shown) is generated.
  • the generated torque is transmitted to the axle (not shown) of the electric vehicle via gears (not shown), thereby providing the axle with rotational drive force.
  • the electric vehicle is therefore provided with the drive force, and the vehicle is thus driven.
  • the accelerator pedal position sensor 22 detects the amount of depression of the accelerator pedal of the electric vehicle and sends the result of detection to the control unit 20.
  • the control unit 20 has a CPU 20a, a ROM 20b, a RAM 20c, and an input/output port 20d.
  • the CPU 20a executes desired operations in accordance with the control programs to perform various operations and controls.
  • Pre-stored in the ROM 20b are the aforementioned control programs, the control data for use in execution of the above-mentioned operation, data regarding the output current-output power characteristics using, as a parameter, the amount or state of charge (SOC) of the battery 40.
  • the RAM 20c temporarily stores various data obtained by execution of the aforementioned operations.
  • the input/output port 20d inputs the results of detection from the various sensors and sends them to the CPU 20a, and furthermore outputs control signals to the various components or elements in accordance with an instruction from the CPU 20a.
  • the fuel cell system of this embodiment employs the bypass 48, the changeover switch 37 and the cutoff switch 41 as described below.
  • the bypass 48 is formed of connecting lines that directly connect between the input and the output of the DC/DC converter 38.
  • the bypass 48 is provided for supplying power generated by the fuel cell 36 to the inverter 44, while bypassing the DC/DC converter 38, and forms a second elecric passage.
  • the changeover switch 37 is a switch for selectively changing between connection of one of the output lines of the fuel cell 36 to either one of the input lines of the DC/DC converter 38, or to one of the two lines of the bypass 48. Therefore, if the changeover switch 37 has been switched to the input of the DC/DC converter 38, power generated by the fuel cell 36 is supplied to the inverter 44 and the battery 40 via the DC/DC converter 38. If the changeover switch 37 has been switched to the bypass 48, power generated by the fuel cell 36 is supplied to the inverter 44 via the bypass 48 bypassing the DC/DC converter 38.
  • the changeover switch 37 is operated in accordance with a control signal from the control unit 20.
  • the cutoff switch 41 is a switch for cutting one of the output lines of the battery 40 off from a connecting line between the diode 39 and the inverter 44.
  • the cutoff switch 41 When the cutoff switch 41 is on, the battery 40 is electrically connected to the bypass 48 and the DC/DC converter 38.
  • the cutoff switch 41 When the cutoff switch 41 is off, the battery 40 is completely electrically disconnected from those components.
  • the cutoff switch 41 is changed between the on-state and the off-states in accordance with a control signal from the control unit 20.
  • Fig. 2 is a flowchart illustrating an initial portion of the operation performed by the fuel cell system shown in Fig. 1.
  • Fig. 3 is a flowchart illustrating a later portion of the operation continuing from the flowchart of Fig. 2.
  • the changeover switch 37 is connected to the input of the DC/DC converter 38, and the cutoff switch 41 is in the on-state.
  • step S10 in Fig. 2 the control unit 20 inputs an accelerator pedal depression detected by the accelerator pedal position sensor 22. Based on the detected accelerator pedal depression, the control unit 20 is able to detect a driver's intention related to how much power is to be supplied to the motor 46 via the inverter 44 to drive the electric vehicle. In step S12, the control unit 20 calculates a power to be supplied via the inverter 44 (required output of the inverter 44) on the basis of the detected accelerator pedal depression.
  • step S14 the control unit 20 determines a power to be generated by the fuel cell 36, that is, an expected output power. For example, if the fuel cell 36 is desired to be operated at a desired operating point, the control unit 20 calculates the power expected to be generated by the fuel cell 36 if the fuel cell 36 is operated at that operating point, and determines the calculated power as an expected output power.
  • the control unit 20 may execute the processing of steps S10 and S12 and the processing of step S14 substantially simultaneously, or serially. That is, the control unit 20 may also start one of the processings after completing the other processing.
  • step S16 the control unit 20 subtracts the expected output power of the fuel cell 36 determined in step S14 from the required output of the inverter 44 calculated in step S12 to determine a difference therebetween. If the difference is greater than zero, the operation proceeds to step S18 in Fig. 3. If the difference is less than zero, the operation proceeds to step S26 in Fig. 3. If the difference is zero, the operation proceeds to step S42 in Fig. 3. The difference being greater than zero indicates that the required output of the inverter 44 cannot be provided solely by the output power of the fuel cell 36. The difference being less than zero indicates that the output power of the fuel cell 36 provides a surplus power after providing the required output for the inverter 44. The difference being equal to zero indicates that the output power of the fuel cell 36 provides the exact amount of the required output of the inverter 44 without a surplus nor a shortage.
  • Steps S18-S24 in Fig. 3 will be described. If it is determined in step S16 that the difference between the required output of the inverter 44 and the expected output power of the fuel cell 36 is greater than zero, the control unit 20 inputs, in step S18, an amount or state of charge (SOC) of the battery 40 detected by the SOC sensor 42.
  • SOC state of charge
  • step S20 the control unit 20 reads from the ROM 20b in the control unit 20 an output current-output voltage characteristic of the battery 40 corresponding to the SOC inputted in step S18.
  • Fig. 4 is a graph indicating an example of the output current-output voltage characteristic map of the battery 40 shown in Fig. 1 wherein SOC is used as a parameter.
  • the vertical axis indicates the output voltage of the battery 40 and the horizontal axis indicates the output current of the battery 40.
  • the output current-output voltage characteristic of the battery 40 varies depending on SOC. That is, if SOC is determined, then a single output current-output voltage characteristic curve is determined.
  • Fig. 4 shows output current-output voltage characteristic curves G1, G2, G3, G4 and G5 in increasing order of SOC.
  • various output current-output voltage characteristics corresponding to different SOC values are stored in the ROM 20b.
  • the control unit 20 reads an output current-output voltage characteristic corresponding to the input SOC from the plural output current-output voltage characteristics stored in the ROM 20b. Based on the output current-output voltage characteristic thus read, the control unit 20 determines, in step S20, an output voltage required for the battery 40 from the difference between the required output of the inverter 44 and the expected output power of the fuel cell 36 determined in step S16.
  • the control unit 20 calculates a point on the read characteristic curve G3 at which the multiplication product of the output current and the output voltage (that is, the output power of the battery 40) becomes substantially equal to the difference between the required output of the inverter 44 and the expected output power of the fuel cell 36. If the point is, for example, Pn in Fig. 4, the output voltage of the battery 40 at the point Pn is determined as an output voltage required for the battery 40.
  • step S22 the control unit 20 controls the DC/DC converter 38 so that the output voltage of the DC/DC converter 38 becomes equal to the output voltage determined in step S20.
  • the changeover switch 37 is connected to the input of the DC/DC converter 38, and the cutoff switch 41 is in the on-state, as initial states as mentioned above.
  • the output voltage of the DC/DC converter 38 is applied to the battery 40 and the inverter 44, the output voltage of the battery 40 can be brought to the output voltage determined in step S20 by adjusting the output voltage of the DC/DC converter 38 as described above. As a result, the battery 40 is caused to output a power corresponding to the difference between the required output of the inverter 44 and the expected output power of the fuel cell 36 determined in step S16.
  • step S24 the control unit 20 controls the inverter 44 so that the power corresponding to the required output of the inverter 44 calculated in step S12 is supplied to the motor 46 via the inverter 44 and therefore consumed by the motor 46.
  • the power outputted from the battery 40 is supplied to the inverter 44, and a supplemental amount of power for the required power (that is, the difference between the required output of the inverter 44 and the output power of the battery 40) is extracted from the fuel cell 36, and is supplied to the inverter 44.
  • control unit 20 controls the DC/DC converter 38 and the inverter 44 as described above, so that the power equal to the expected output power determined in step S14 is extracted from the fuel cell 36 and the power from the fuel cell 36 is supplied to the inverter 44 together with the power from the battery 40.
  • Steps S26-S40 in Fig. 3 will next be described. If it is determined in step S16 that the difference between the required output of the inverter 44 and the expected output power of the fuel cell 36 is less than zero, the control unit 20 inputs, in step S26, an amount or state of charge (SOC) of the battery 40 detected by the SOC sensor 42, as in the case where the difference is greater than zero.
  • SOC state of charge
  • step S28 the control unit 20 determines whether the input SOC is less than 100%. If the SOC is 100%, the control unit 20 goes to step S30 taking it into consideration that the battery 40 cannot store any more power. If the SOC is less than 100%, the control unit 20 goes to step S36 taking it into consideration that the battery 40 still has a capacity for storing power.
  • control unit 20 controls the cutoff switch 41 to turn the cutoff switch 41 off in step S30, so that the battery 40 is electrically disconnected from the inverter 44, the bypass 48, the DC/DC converter 38 and the like. Therefore, no power is outputted from the battery 40, and no power is stored in the battery 40.
  • step S32 the control unit 20 controls the changeover switch 37 to switch the connection thereof to the bypass 48.
  • the output of the fuel cell 36 is connected to the input of the inverter 44 by the bypass 48, bypassing the DC/DC converter 38.
  • step S34 the control unit 20 controls the inverter 44 so that the power corresponding to the required output of the inverter 44 calculated in step S12 is supplied via the inverter 44 to the motor 46 and therefore consumed by the motor 46.
  • the power corresponding to the required output of the inverter 44 is extracted from the fuel cell 36, and is supplied to the inverter 44 via the bypass 48, without being conducted via the DC/DC converter 38 and without being stored into the battery 40. Therefore, the entire power from the fuel cell 36 is consumed by the motor 46.
  • the power extracted from the fuel cell 36 is less than the expected output power determined in step S14 in this case. This is because the difference between the required output of the inverter 44 and the expected output power of the fuel cell 36 is less than zero in this case.
  • step S28 If it is determined in step S28 that the SOC is less than 100% (YES in step S28), the control unit 20 reads, in step S36, an output current-output voltage characteristic corresponding to the SOC inputted in step S26 from the ROM 20b provided in the control unit 20. Furthermore in step S36, based on the output current-output voltage characteristic read from the ROM 20b, the control unit 20 determines an output voltage required for the battery 40 from the difference between the required output of the inverter 44 and the expected output power of the fuel cell 36 determined in step S16.
  • Step S36 is executed as in step S20. That is, if the characteristic curve G3 indicated in Fig. 4, for example, is read out as an output current-output voltage characteristic corresponding to the detected SOC, the control unit 20 calculates a point on the read characteristic curve G3 at which the multiplication product of the output current and the output voltage (that is, the output power of the battery 40) becomes substantially equal to the difference between the required output of the inverter 44 and the expected output power of the fuel cell 36.
  • the control unit 20 calculates a point at which the product of the output current and the output voltage (i.e., the output power of the battery 40) is a negative value.
  • the output power of the battery 40 being negative means that the power is stored into the battery 40. Since the output voltage of the battery 40 does not become negative as can be seen from Fig. 4, the control unit 20 calculates a point at which the output current is negative.
  • the output voltage Vr of the battery 40 at the point Pr is determined as an output voltage required for the battery 40.
  • step S38 the control unit 20 executes substantially the same processing as in step S22.
  • the changeover switch 37 and the cutoff switch 41 are in the initial states, that is, the changeover switch 37 is connected to the input of the DC/DC converter 38 and the cutoff switch 41 is in the on-state, as mentioned above.
  • step S38 the control unit 20 adjusts the output voltage of the DC/DC converter 38 so that the output voltage of the battery 40 becomes equal to the output voltage determined in step S36. Therefore, a power is stored into the battery 40. More specifically, of the power extracted from the fuel cell 36, an amount of power corresponding to the absolute value of the difference between the required output of the inverter 44 and the expected output power of the fuel cell 36 is stored into the battery 40.
  • step S40 the control unit 20 controls the inverter 44 so that the power corresponding to the required output of the inverter 44 calculated in step S12 is supplied to the motor 46 via the inverter 44 and therefore consumed by the motor 46.
  • an amount of power corresponding to the required output of the inverter 44 that is, the amount of power that is not stored into the battery 40 is supplied to the inverter 44 and consumed by the motor 46.
  • control unit 20 controls the DC/DC converter 38 and the inverter 44 as described above, so that the power equal to the expected output power determined in step S14 is extracted from the fuel cell 36 and a portion of the power is stored into the battery 40.
  • Steps S42-S56 in Fig. 3 will be described. If it is determined in step S16 that the difference between the required output of the inverter 44 and the expected output power of the fuel cell 36 is zero, the control unit 20 inputs, in step S42, an amount or state of charge (SOC) of the battery 40 detected by the SOC sensor 42, as in steps S18 and S26.
  • SOC state of charge
  • step S44 the control unit 20 determines whether the input SOC is greater than 60%. If it is determined that the SOC is not greater than 60%, it is considered that the battery 40 is not sufficiently charged, and needs to be further charged, and therefore the operation proceeds to step S46. If the SOC is greater than 60%, it is considered that the battery 40 stores a sufficiently large amount of power and does not need to be further charged, and therefore the operation proceeds to step S52.
  • step S46 the control unit 20 reads, in step S46, an output current-output voltage characteristic corresponding to the SOC inputted in step S42 from the ROM 20b provided in the control unit 20. Furthermore in step S46, based on the output current-output voltage characteristic read from the ROM 20b, the control unit 20 determines an output voltage required for the battery 40.
  • Step 46 is executed in substantially the same manner as in steps S20 and S36. That is, if the characteristic curve G3 indicated in Fig. 4, for example, is read out as an output current-output voltage characteristic corresponding to the detected SOC, the control unit 20 sets a desired point on the read characteristic curve G3 at which the multiplication product of the output current and the output voltage (that is, the output power of the battery 40) is a negative value (that is, a desired point at which the output current of the battery 40 is negative), in order to store power into the battery 40. The control unit 20 determines the output voltage of the battery 40 at that point as an output voltage required for the battery 40.
  • step S48 the control unit 20 adjusts the voltage using the DC/DC converter 38 as in steps S22 and S38.
  • the changeover switch 37 and the cutoff switch 41 are in the initial states, that is, the changeover switch 37 is connected to the DC/DC converter 38 and the cutoff switch 41 is in the on-state, as mentioned above.
  • the output voltage of the DC/DC converter 38 is adjusted so that the output voltage of the battery 40 becomes equal to the output voltage determined in step S46.
  • more power is stored into the battery 40.
  • an amount of power corresponding to the point set in step S46 that is, an amount of power corresponding to the absolute value of the multiplication product of the output current and the output voltage at that point) is stored into the battery 40.
  • step S50 the control unit 20 controls the inverter 44 so that the power corresponding to the required output of the inverter 44 calculated in step S12 is supplied to the motor 46 via the inverter 44 and therefore consumed by the motor 46.
  • the control unit 20 controls the inverter 44 so that the power corresponding to the required output of the inverter 44 calculated in step S12 is supplied to the motor 46 via the inverter 44 and therefore consumed by the motor 46.
  • control unit 20 controls the DC/DC converter 38 and the inverter 44 as described above, so that a portion of the power extracted from the fuel cell 36 is stored into the battery 40.
  • step S44 If it is determined in step S44 that the SOC is greater than 60% (YES in step S44), the control unit 20 controls the cutoff switch 41 in step S52 to turn off the cutoff switch 41, so that the battery 40 is electrically disconnected from the inverter 44, the bypass 48, the DC/DC converter 38 and the like, as in step S30. As a result, no power is outputted from the battery 40, and no power is stored into the battery 40.
  • step S54 the control unit 20 controls the changeover switch 37 to switch the connection of the changeover switch 37 to the bypass 48, as in step S38.
  • the output of the fuel cell 36 is connected to the input of the inverter 44 via the bypass 48, bypassing the DC/DC converter 38.
  • step S56 the control unit 20 controls the inverter 44 so that the power corresponding to the required output of the inverter 44 calculated in step S12 is supplied to the motor 46 via the inverter 44 and therefore consumed by the motor 46.
  • the power corresponding to the required output of the inverter 44 is extracted from the fuel cell 36 is supplied to the inverter 44 and consumed by the motor 46, without being conducted through the DC/DC converter 38 nor being stored into the battery 40.
  • the processing in each of steps S34 and S56 in the embodiment supplies the power generated by the fuel cell 36 to the inverter 44 while bypassing the DC/DC converter 38, which causes a power loss, so that substantially no power loss occurs in the conducting passage. Furthermore, in each of the steps S34 and S56, it is unnecessary to store power into the battery 40 and to output power from the battery 40. Therefore, the processing of the steps S34 and S56 is not affected by the electrical disconnection of the battery 40 from the inverter 44, the bypass 48, the DC/DC converter 38 and the like which is accomplished by operating the cutoff switch 41 in steps S30 and S52. Furthermore, the disconnection of the battery 40 in steps S30 and S52 eliminates the need to set the output voltage of the battery 40 to a desired value, so that the DC/DC converter 38 becomes unnecessary. Therefore, bypassing the DC/DC converter 38 does not cause any problem.
  • the frequency of the switching of the changeover switch 37 and the cutoff switch 41 decreases, and the power conduction via the bypass 48 with the battery 40 disconnected becomes more likely to be selected for a greater proportion of the entire duration.
  • the embodiment thus becomes more effective in such a case. Since in typical fuel cells the efficiency decreases at the time of high output, power conduction via the bypass 48 with the battery 40 disconnected becomes very effective if a high output of the fuel cell is required, for example, during high-speed travel or the like.
  • the changeover switch 37 is a switch for selectively changing the connection of the fuel cell 36 between the connection to the input DC/DC converter 38 and the connection to the bypass 48
  • the changeover switch 37 may also be a switch for selectively changing the connection of the input of the inverter 44 between the connection to the output of the DC/DC converter 38 and the connection to the bypass 48. It is also possible to employ a changeover switch for changing between the disconnection of the bypass 48 and the connection of the bypass 48.
  • methanol and water are supplied as the fuel 24 to the reformer 28, the fuel usable in the invention is not limited to those materials.
  • methanol may be replaced by methane, ethanol, natural gas, gasoline, light oil, or the like. If hydrogen is used as a fuel 24, the reformer 28 becomes unnecessary.
  • the fuel cell 36 is not limited to a polymer electrolyte fuel cell, but may also be other type of fuel cell, for example, a phosphoric acid fuel cell, a solid electrolyte fuel cell, and the like.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Fuel Cell (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
EP99113096A 1998-07-16 1999-07-06 Système de pile à combustible capable de réduire des pertes de puissance électrique Withdrawn EP0972668A3 (fr)

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JP21964898 1998-07-16
JP10219648A JP2000036308A (ja) 1998-07-16 1998-07-16 燃料電池システム

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EP0972668A3 EP0972668A3 (fr) 2002-04-03

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002020300A1 (fr) * 2000-09-04 2002-03-14 Nissan Motor Co., Ltd. Vehicule a pile a combustible
EP1195287A2 (fr) * 2000-10-04 2002-04-10 Toyota Jidosha Kabushiki Kaisha Alimentation de puissance en courant continu utilisant des piles à combustible
WO2002029916A2 (fr) * 2000-10-04 2002-04-11 Toyota Jidosha Kabushiki Kaisha Source de courant continu avec pile à combustible
FR2815302A1 (fr) * 2000-10-18 2002-04-19 Renault Systeme et procede de commande d'une pile a combustible montee dans un vehicule a traction electrique
EP1225082A2 (fr) * 2001-01-19 2002-07-24 Nissan Motor Co., Ltd. Dispositif de commande pour un véhicule à propulsion de pile à combustible
EP1234697A1 (fr) * 2001-02-23 2002-08-28 Renault Procédé et dispositif de chauffage d'un habitacle d'un véhicule équipé d'une pile à combustible
WO2003047019A2 (fr) * 2001-11-27 2003-06-05 Ballard Power Systems Inc. Systeme de generation de courant efficace a suivi de charge
EP1365936A2 (fr) * 2001-02-06 2003-12-03 Invacare Corporation Systeme et procede permettant de conduire un vehicule electrique
US6960400B2 (en) * 2001-12-26 2005-11-01 Toyota Jidosha Kabushiki Kaisha Fuel cell power generation system and control method thereof
WO2006012089A3 (fr) * 2004-06-28 2006-03-23 Gen Electric Systeme et procede d'accumulation d'energie pour propulsion hybride
DE102005021722A1 (de) * 2005-05-11 2006-05-24 Daimlerchrysler Ag Vorrichtung mit elektrochemischer Einheit, Verfahren zum Betreiben einer Vorrichtung mit elektrochemischer Einheit sowie Fahrzeug mit einer elektrochemischen Einheit
WO2007039211A1 (fr) * 2005-09-29 2007-04-12 Airbus Deutschland Gmbh Système d'alimentation en énergie pour alimenter des systèmes d'aéronef
DE102008023292A1 (de) * 2008-05-13 2009-12-03 Clean Mobile Ag Elektrische Energieversorgungseinheit und Verfahren zum Laden und Entladen von Akkumulatoren einer elektrischen Energieversorgungseinheit
DE102010048673A1 (de) * 2010-10-16 2012-04-19 Volkswagen Ag Fahrzeug mit Elektromotor und Energiespeicher
WO2012117150A1 (fr) * 2011-02-28 2012-09-07 Wärtsilä Finland Oy Procédé et agencement pour l'opérabilité améliorée d'un système de pile à combustible à haute température
CN102810685A (zh) * 2011-06-01 2012-12-05 巴莱诺斯清洁能源控股公司 管理混合系统操作的方法
DE102011087015A1 (de) * 2011-11-24 2013-05-29 Airbus Operations Gmbh Energieversorgungssystem, Luft- oder Raumfahrzeug und Verfahren
DE102014205977A1 (de) * 2014-03-31 2015-10-01 Thyssenkrupp Marine Systems Gmbh Schaltungsanordnung zur elektrischen Anbindung zumindest einer Brennstoffzellenanlage und zumindest einer wiederaufladbaren Batterie an ein Fahrnetz eines Unterwasserfahrzeugs
EP2226878A4 (fr) * 2007-12-28 2017-10-18 Toyota Jidosha Kabushiki Kaisha Système de pile à combustible
DE102017214445A1 (de) * 2017-08-18 2019-02-21 Audi Ag Verfahren zum Betreiben einer Brennstoffzellenanordnung sowie entsprechende Brennstoffzellenanordnung
DE102017214440A1 (de) * 2017-08-18 2019-02-21 Audi Ag Verfahren zum Betreiben einer Brennstoffzellenanordnung sowie entsprechende Brennstoffzellenanordnung
CN112740499A (zh) * 2018-09-26 2021-04-30 日产自动车株式会社 电动车辆的控制方法和电动车辆系统
US11031889B2 (en) 2019-02-21 2021-06-08 Audi Ag Drive device and method for operating a drive device

Families Citing this family (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4253920B2 (ja) * 1999-05-06 2009-04-15 日産自動車株式会社 燃料電池自動車の電力配分制御装置
DE19954306B4 (de) * 1999-11-11 2004-09-02 Ballard Power Systems Ag Vorrichtung zur elektrischen Energieerzeugnung mit einer Brennstoffzelle in einem Fahrzeug und Verfahren zum Betrieb einer derartigen Vorrichtung
US6468682B1 (en) * 2000-05-17 2002-10-22 Avista Laboratories, Inc. Ion exchange membrane fuel cell
JP3692906B2 (ja) * 2000-05-25 2005-09-07 日産自動車株式会社 電力配線構造及び半導体装置
JP3721947B2 (ja) * 2000-05-30 2005-11-30 日産自動車株式会社 燃料電池システムの制御装置
AU2001278046A1 (en) * 2000-07-28 2002-02-13 International Power Systems, Inc. Dc to dc converter and power management system
US6655130B1 (en) * 2000-10-30 2003-12-02 Delphi Technologies, Inc. System and controls for near zero cold start tailpipe emissions in internal combustion engines
JP2002141073A (ja) * 2000-10-31 2002-05-17 Nissan Motor Co Ltd 移動体用燃料電池システム
US6452352B1 (en) * 2000-11-02 2002-09-17 Ballard Power Systems Corporation Method of current interaction in an electric motor drive system having a load-dependent current generating system
DE10056429A1 (de) * 2000-11-14 2002-06-13 Daimler Chrysler Ag Brennstoffzellensystem und Verfahren zum Betreiben des Brennstoffzellensystems
US6321145B1 (en) * 2001-01-29 2001-11-20 Delphi Technologies, Inc. Method and apparatus for a fuel cell propulsion system
JP4348891B2 (ja) * 2001-06-15 2009-10-21 トヨタ自動車株式会社 燃料電池を有する動力出力装置およびその方法
US6738692B2 (en) 2001-06-25 2004-05-18 Sustainable Energy Technologies Modular, integrated power conversion and energy management system
DE10147149A1 (de) * 2001-09-25 2003-04-24 Ballard Power Systems Verfahren zur dynamischen Bereitstellung von elektrischer Leistung für den Fahrantrieb eines Kraftfahrzeugs
US6573682B1 (en) * 2001-12-14 2003-06-03 Ballard Power Systems Inc. Fuel cell system multiple stage voltage control method and apparatus
US7144646B2 (en) * 2001-12-14 2006-12-05 Ballard Power Systems Inc. Method and apparatus for multiple mode control of voltage from a fuel cell system
AU2003210939A1 (en) * 2002-02-06 2003-09-02 Battelle Memorial Institute Polymer electrolyte membrane fuel cell system
AU2003219726A1 (en) 2002-02-06 2003-09-02 Battelle Memorial Institute Methods of removing contaminants from a fuel cell electrode
US7038333B2 (en) * 2002-02-15 2006-05-02 The Gillette Company Hybrid power supply
US20040058226A1 (en) * 2002-04-25 2004-03-25 Lamarre Philip A. Efficiency lateral micro fuel cell
US7087327B2 (en) 2002-05-16 2006-08-08 Ballard Power Systems Inc. Electric power plant with adjustable array of fuel cell systems
CA2389116A1 (fr) * 2002-06-05 2003-12-05 Kodjo Agbossou Systeme de commande pour systeme d'energie renouvelable
CN100572123C (zh) * 2002-06-10 2009-12-23 丰田自动车株式会社 带有燃料电池的车辆
KR100460881B1 (ko) * 2002-06-28 2004-12-09 현대자동차주식회사 연료전지 하이브리드 전기자동차의 동력분배 제어시스템및 제어방법
KR100461272B1 (ko) * 2002-07-23 2004-12-10 현대자동차주식회사 연료 전지 하이브리드 차량의 전원 단속장치
WO2004054022A2 (fr) * 2002-12-05 2004-06-24 Battelle Memorial Institute Procedes permettant d'eliminer le soufre dans une electrode de pile a combustible
JP3948421B2 (ja) * 2003-03-10 2007-07-25 日産自動車株式会社 密閉型ニッケル水素二次電池を備えたハイブリッド電気自動車
JP4742486B2 (ja) * 2003-04-10 2011-08-10 日産自動車株式会社 燃料電池の発電量制御装置
US7632583B2 (en) * 2003-05-06 2009-12-15 Ballard Power Systems Inc. Apparatus for improving the performance of a fuel cell electric power system
US6838923B2 (en) * 2003-05-16 2005-01-04 Ballard Power Systems Inc. Power supply and ultracapacitor based battery simulator
US7419734B2 (en) * 2003-05-16 2008-09-02 Ballard Power Systems, Inc. Method and apparatus for fuel cell systems
JP4622856B2 (ja) 2003-06-05 2011-02-02 トヨタ自動車株式会社 モータ駆動装置、それを搭載した自動車および電圧変換の制御をコンピュータに実行させるためのプログラムを記録したコンピュータ読取り可能な記録媒体
TWI276240B (en) * 2003-11-26 2007-03-11 Ind Tech Res Inst Fuel cell power supply device
US7446501B2 (en) * 2004-03-19 2008-11-04 More Energy Ltd. Integrated fuel cell controller for devices
US20070054678A1 (en) * 2004-04-22 2007-03-08 Spinvox Limited Method of generating a sms or mms text message for receipt by a wireless information device
US7521138B2 (en) * 2004-05-07 2009-04-21 Ballard Power Systems Inc. Apparatus and method for hybrid power module systems
US7531916B2 (en) * 2004-05-26 2009-05-12 Altergy Systems, Inc. Protection circuits for hybrid power systems
JP4131411B2 (ja) 2004-05-27 2008-08-13 トヨタ自動車株式会社 電気自動車の制御装置
JP4397739B2 (ja) * 2004-06-03 2010-01-13 本田技研工業株式会社 燃料電池車両の電圧状態設定方法
DE102004028809B4 (de) * 2004-06-15 2006-09-14 Staxera Gmbh Brennstoffzellensystem
US20060057441A1 (en) * 2004-09-10 2006-03-16 Wills Robert H Using a fuel cell as energy storage for inverter and converter systems
US20060068239A1 (en) * 2004-09-30 2006-03-30 Yasuaki Norimatsu Electric power source apparatus using fuel cell and method of controlling the same
US7239044B1 (en) 2004-12-09 2007-07-03 Sandia Corporation Enhanced distributed energy resource system
KR100645560B1 (ko) 2004-12-17 2006-11-14 현대자동차주식회사 하이브리드 차량의 동력 분배 제어방법
JP4555136B2 (ja) * 2005-03-31 2010-09-29 本田技研工業株式会社 燃料電池の電気システム、燃料電池車両及び電力供給方法
JP4783580B2 (ja) * 2005-03-31 2011-09-28 本田技研工業株式会社 燃料電池の電気システム、燃料電池車両及び電力供給方法
JP4222337B2 (ja) 2005-04-04 2009-02-12 トヨタ自動車株式会社 複数の電源を備えた電源システム及びそれを備えた車両
KR100637224B1 (ko) 2005-04-21 2006-10-20 삼성에스디아이 주식회사 연료 전지를 이용한 전력 공급 장치, 전력 공급 장치의 제어 방법 및 컴퓨터로 읽을 수 있는 기록매체
TWI378791B (en) * 2005-06-08 2012-12-11 Convatec Technologies Inc A cuff for providing compression to a limb, a channel for use in a compression device and use of a separating means in the manufacture of the cuff and the channel
US7511446B2 (en) * 2005-08-05 2009-03-31 Tm Ge Automation Systems Llc System and method for starting a wound rotor motor
KR100823921B1 (ko) * 2005-09-30 2008-04-22 엘지전자 주식회사 연료전지의 전력변환장치
US7233079B1 (en) * 2005-10-18 2007-06-19 Willard Cooper Renewable energy electric power generating system
JP5071879B2 (ja) 2005-12-07 2012-11-14 トヨタ自動車株式会社 燃料電池システム
CN100404306C (zh) * 2006-03-24 2008-07-23 清华大学 一种燃料电池汽车的能量混合型动力系统
JP4495111B2 (ja) * 2006-05-10 2010-06-30 本田技研工業株式会社 燃料電池システムにおけるコンタクタ故障検知装置
JP4486618B2 (ja) * 2006-06-06 2010-06-23 株式会社リコー 充電回路、充電回路の動作制御方法及び電源装置
US7808125B1 (en) 2006-07-31 2010-10-05 Sustainable Energy Technologies Scheme for operation of step wave power converter
JP5326228B2 (ja) * 2006-09-04 2013-10-30 トヨタ自動車株式会社 燃料電池システム
JP5110913B2 (ja) * 2007-02-28 2012-12-26 三洋電機株式会社 電源装置
KR100902508B1 (ko) * 2007-04-23 2009-06-15 삼성전자주식회사 전력 조절장치 및 그 운영방법
CA2689503C (fr) * 2007-06-04 2017-05-09 Sustainable Energy Technologies Modele predictif pour un convertisseur de puissance a commutation par paliers et topologie d'onduleur inductif
JP4844556B2 (ja) * 2007-12-28 2011-12-28 トヨタ自動車株式会社 電力供給システム
JP5076928B2 (ja) * 2008-01-30 2012-11-21 日産自動車株式会社 燃料電池システムおよび燃料電池システムの制御方法
JP5227620B2 (ja) * 2008-03-13 2013-07-03 本田技研工業株式会社 燃料電池システムの始動方法
JP4444343B2 (ja) 2008-04-25 2010-03-31 本田技研工業株式会社 燃料電池車両
US7936083B2 (en) * 2008-05-08 2011-05-03 GM Global Technology Operations LLC Systems and methods for multiple source power conversion
US8486570B2 (en) * 2008-12-02 2013-07-16 General Electric Company Apparatus for high efficiency operation of fuel cell systems and method of manufacturing same
US8792590B2 (en) 2009-02-25 2014-07-29 Harris Corporation Communications device with in-phase/quadrature (I/Q) DC offset, gain and phase imbalance compensation and related method
CN101860198A (zh) * 2009-04-09 2010-10-13 上海清能燃料电池技术有限公司 一种电源装置及其使用方法
WO2010140227A1 (fr) * 2009-06-03 2010-12-09 トヨタ自動車株式会社 Dispositif de commande de convertisseur
US9024598B2 (en) 2009-06-22 2015-05-05 Toyota Jidosha Kabushiki Kaisha Converter control device
WO2011004492A1 (fr) * 2009-07-10 2011-01-13 トヨタ自動車株式会社 Dispositif de commande de convertisseur
KR20110045426A (ko) * 2009-10-27 2011-05-04 현대자동차주식회사 Ｄｃ/ｄｃ 컨버터 고장시 차량 운전 유지를 위한 비상 동작 장치 및 방법
KR101039679B1 (ko) * 2009-11-17 2011-06-09 현대자동차주식회사 마일드 하이브리드 시스템 및 그 제어 방법
US20130056291A1 (en) * 2010-05-13 2013-03-07 Toyota Jidosha Kabushiki Kaisha Fuel cell system for vehicle and fuel cell vehicle
CN101917026B (zh) * 2010-06-24 2012-11-07 昆山弗尔赛能源有限公司 一种基于燃料电池的应急发电车
JP6028499B2 (ja) * 2012-04-06 2016-11-16 ソニー株式会社 電力供給装置
JP5606488B2 (ja) 2012-04-19 2014-10-15 三菱電機株式会社 車載電源装置
CA2861987A1 (fr) * 2012-05-10 2013-11-14 International Truck Intellectual Property Company, Llc Commande de polarite de transition de contacteurs d'isolation
CN102862491B (zh) * 2012-09-28 2014-09-03 引峰新能源科技（上海）有限公司 紧凑型燃料电池电源系统
KR101448757B1 (ko) * 2012-12-31 2014-10-08 현대자동차 주식회사 연료전지자동차의 비상시동장치
KR101459900B1 (ko) * 2013-05-07 2014-11-10 현대자동차주식회사 연료전지차량의 스타트 스탑 제어방법
WO2015160751A1 (fr) * 2014-04-14 2015-10-22 Ovonic Battery Company, Inc. Système de pile à combustible de batterie hybride à électrode partagée
DE102014224574A1 (de) * 2014-12-02 2016-06-02 Robert Bosch Gmbh Eigensichere Bleed-Down-Schaltung und Regelstrategie für Brennstoffzellen-systeme
US10166884B2 (en) 2015-08-11 2019-01-01 Nissan Motor Co., Ltd. Power conditioning system and control method therefor
KR101759140B1 (ko) * 2016-01-19 2017-07-18 현대자동차주식회사 연료전지의 출력 제어 방법 및 장치
JP6628699B2 (ja) * 2016-08-02 2020-01-15 株式会社デンソーテン 給電制御装置および給電制御システム
JP6546612B2 (ja) * 2017-02-21 2019-07-17 株式会社Ｓｕｂａｒｕ 電池システムの制御装置及び電池システム
KR102454222B1 (ko) * 2017-07-21 2022-10-17 현대자동차주식회사 전기 자동차
DE102017214972A1 (de) * 2017-08-28 2019-02-28 Audi Ag Antriebseinrichtung für ein Kraftfahrzeug sowie Verfahren zum Betreiben einer Antriebseinrichtung für ein Kraftfahrzeug
KR102478086B1 (ko) * 2017-11-22 2022-12-16 현대자동차주식회사 연료전지 차량시스템 및 이를 제어하는 방법
CN109204066B (zh) * 2018-11-12 2021-02-26 清华大学 一种燃料电池动力系统及其控制方法、整车控制器、汽车
CN109774540B (zh) * 2018-12-29 2019-12-24 清华大学 燃料电池车辆的动力系统控制方法、计算机设备和存储介质
JP7115340B2 (ja) * 2019-01-28 2022-08-09 トヨタ自動車株式会社 燃料電池システム及び燃料電池システムの制御方法
KR20210090320A (ko) 2020-01-09 2021-07-20 현대자동차주식회사 연료 전지를 포함하는 차량, 이 차량에서 수행되는 배터리 충전 방법, 및 이 방법을 실행하기 위한 프로그램을 기록한 기록 매체
CN113119806A (zh) * 2020-01-15 2021-07-16 北汽福田汽车股份有限公司 一种燃料电池系统、汽车及燃料电池系统的供电控制方法
JP7396262B2 (ja) 2020-12-21 2023-12-12 トヨタ自動車株式会社 燃料電池システムおよび燃料電池システムの制御方法
WO2022176223A1 (fr) * 2021-02-19 2022-08-25 日本電産株式会社 Dispositif de commande de moteur
DE102021209915A1 (de) * 2021-09-08 2023-03-09 Siemens Energy Global GmbH & Co. KG Energieversorgungssystem mit Energieversorgungsmodulen und Verfahren zur Energieversorgung
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909689A (en) * 1974-01-02 1975-09-30 Top Quality Tool & Machine Co Electrically powered self-propelled wheelchair and control unit
US5334463A (en) * 1991-11-29 1994-08-02 Sanyo Electric Co., Ltd. Hybrid fuel battery system and the operation method thereof
EP0834948A2 (fr) * 1996-09-27 1998-04-08 Toyota Jidosha Kabushiki Kaisha Appareil pour réduire la concentration en monoxyde de carbone et dispositif de générateur à piles à combustible comportant un tel appareil

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2782854B2 (ja) * 1989-10-27 1998-08-06 富士電機株式会社 燃料電池の保護装置
JPH03276573A (ja) 1990-03-26 1991-12-06 Fuji Electric Co Ltd 車両搭載用燃料電池の制御方式
US5519312A (en) * 1993-11-29 1996-05-21 Alfred University Hybrid system of fuel cell and superconducting magnetic energy storage device
JP3564742B2 (ja) * 1994-07-13 2004-09-15 トヨタ自動車株式会社 燃料電池発電装置
JP3358903B2 (ja) 1995-02-02 2002-12-24 三菱重工業株式会社 燃料電池の電力供給装置
DE19540824C2 (de) * 1995-11-02 2001-02-22 Xcellsis Gmbh Verfahren zur dynamischen Einstellung der Leistung für ein Fahrzeug mit Brennstoffzelle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909689A (en) * 1974-01-02 1975-09-30 Top Quality Tool & Machine Co Electrically powered self-propelled wheelchair and control unit
US5334463A (en) * 1991-11-29 1994-08-02 Sanyo Electric Co., Ltd. Hybrid fuel battery system and the operation method thereof
EP0834948A2 (fr) * 1996-09-27 1998-04-08 Toyota Jidosha Kabushiki Kaisha Appareil pour réduire la concentration en monoxyde de carbone et dispositif de générateur à piles à combustible comportant un tel appareil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NADAL M ET AL: "DEVELOPMENT OF A HYBRID FUEL CELL/BATTERY POWERED ELECTRIC VEHICLE" INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, ELSEVIER SCIENCE PUBLISHERS B.V., BARKING, GB, vol. 21, no. 6, 1 June 1996 (1996-06-01), pages 497-505, XP000587909 ISSN: 0360-3199 *

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002020300A1 (fr) * 2000-09-04 2002-03-14 Nissan Motor Co., Ltd. Vehicule a pile a combustible
US7007766B2 (en) 2000-09-04 2006-03-07 Nissan Motor Co., Ltd. Fuel cell vehicle
CN100350660C (zh) * 2000-10-04 2007-11-21 丰田自动车株式会社 带有燃料电池的直流电源
US8018196B2 (en) 2000-10-04 2011-09-13 Toyota Jidosha Kabushiki Kaisha DC power source with fuel cell and electric power storage device
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WO2002029916A3 (fr) * 2000-10-04 2003-03-13 Toyota Motor Co Ltd Source de courant continu avec pile à combustible
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EP1195287A3 (fr) * 2000-10-04 2004-12-08 Toyota Jidosha Kabushiki Kaisha Alimentation de puissance en courant continu utilisant des piles à combustible
FR2815302A1 (fr) * 2000-10-18 2002-04-19 Renault Systeme et procede de commande d'une pile a combustible montee dans un vehicule a traction electrique
WO2002032715A1 (fr) * 2000-10-18 2002-04-25 Renault Systeme et procede de commande d'une pile a combustible montee dans un vehicule a traction electrique
EP1225082A3 (fr) * 2001-01-19 2004-12-15 Nissan Motor Co., Ltd. Dispositif de commande pour un véhicule à propulsion de pile à combustible
EP1225082A2 (fr) * 2001-01-19 2002-07-24 Nissan Motor Co., Ltd. Dispositif de commande pour un véhicule à propulsion de pile à combustible
EP1365936A2 (fr) * 2001-02-06 2003-12-03 Invacare Corporation Systeme et procede permettant de conduire un vehicule electrique
EP1365936A4 (fr) * 2001-02-06 2005-04-13 Invacare Corp Systeme et procede permettant de conduire un vehicule electrique
FR2821297A1 (fr) * 2001-02-23 2002-08-30 Renault Procede et dispositif de chauffage d'un habitacle d'un vehicule equipe d'une pile a combustible
EP1234697A1 (fr) * 2001-02-23 2002-08-28 Renault Procédé et dispositif de chauffage d'un habitacle d'un véhicule équipé d'une pile à combustible
WO2003047019A2 (fr) * 2001-11-27 2003-06-05 Ballard Power Systems Inc. Systeme de generation de courant efficace a suivi de charge
WO2003047019A3 (fr) * 2001-11-27 2003-12-11 Ballard Power Systems Systeme de generation de courant efficace a suivi de charge
US6960400B2 (en) * 2001-12-26 2005-11-01 Toyota Jidosha Kabushiki Kaisha Fuel cell power generation system and control method thereof
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US7190133B2 (en) 2004-06-28 2007-03-13 General Electric Company Energy storage system and method for hybrid propulsion
RU2397076C2 (ru) * 2004-06-28 2010-08-20 Дженерал Электрик Компани Система и способ накопления энергии для гибридной движительной системы
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WO2007039211A1 (fr) * 2005-09-29 2007-04-12 Airbus Deutschland Gmbh Système d'alimentation en énergie pour alimenter des systèmes d'aéronef
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